Kotlin(Computer Science ) Questions and answers for exam Preparation

Question 1. What is the best known programming language ever?

Python
Kotlin
Java
SQL

Explanation:-

Answer: Option C. -> Java

Question 2. Do booleans Need to be Capitalized on the first letter?

Yes
It depends
No
All of above

Explanation:-

Answer: Option A. -> Yes

Question 3. Which is the correct data class?

class DataUser(name : String, address : String)
data class DataUser(name : String, address : String)
data class DataUser(val name : String, val address : String)
open data class DataUser(val name : String, val address : String)

Explanation:-

Answer: Option C. -> data class DataUser(val name : String, val address : String)

Question 4. Manakah OS di bawah ini yang Open Source?

Android
Linux
Mac OS
Both A & B

Explanation:-

Answer: Option D. -> Both A & B

Question 5. Which keyword used to create a mutable variable?

var
val
const
mutable

Explanation:-

Answer: Option A. -> var

Question 6. Which the right code to declare nullable variable in Kotlin?

val text: String = null
val text: String? = null
val text: nullable = null
val text: String

Explanation:-

Answer: Option B. -> val text: String? = null

Question 7. Which is the right declaration to make a variable with the Character data type?

val char = 'ABC'
val char = "A"
val char = 'A'
val char = A

Explanation:-

Answer: Option C. -> val char = 'A'

Question 8. What value is 10 until 12

10 11 12
10 11
11 12
All is wrong!

Explanation:-

Answer: Option B. -> 10 11

Question 9. Which ways can you use for an HTML file?

.htm
.html
.tml
Both A & B

Explanation:-

Answer: Option D. -> Both A & B

Question 10. What is Java used on?

Wifi Routers
Blu-Ray Players
Operating Systems
All of above

Explanation:-

Answer: Option D. -> All of above